http://news.bbc.co.uk/1/hi/uk_politics/7911573.stm

and pay particular attention to the bits that say:

Deputy Lib Dem leader Vince Cable, standing in for Nick Clegg, urged the family to be given space to "grieve and cope with this tragedy that they've experienced".


Friends said the experience of caring for Ivan broadened Mr Cameron's political outlook and made him a passionate supporter of the NHS, which helped provide round-the-clock care for Ivan.
The Camerons have asked people to send donations to Mencap or the Friends of St Mary's Hospital rather than send flowers.